Shell script with date parameter

vinayrao · #1 (**permalink**) 12-09-2008

Hi All

I have a shell script which calls all the Teradata Utiltyes . There is a sudden change in the requirment .

What i'm asked to do is

pass on the DATE to the shell script which should take the date automatically and run the utilityes.

i.e. the date should not be passed on manulay.The date should be taken automatically.

Please suggest me something on this.

Thanks,
Vinay

vidyadhar85 · #2 (**permalink**) 12-09-2008

whats the date format that your script takes??
can you post the script??

vinayrao · #3 (**permalink**) 12-09-2008

The date parameter is something like this

'20050101',20080101.
Irrespective of the date is correct or not we take the date with an intreval of 3 years.But that is the date format like

"yyyymmdd".
Please suggest me something

thanks,
Vinay

Ikon · #4 (**permalink**) 12-09-2008

Is this what you are looking for?

Code:

#  date '+%Y%m%d'
20081209
#  date --date='-3 years' '+%Y%m%d'
20051209
#  date --date='3 years' '+%Y%m%d'
20111209

vinayrao · #5 (**permalink**) 12-09-2008

But will the shell script take the DATE automatically , If this condition is passed. I mean to ask is i dont want give the date maually.

When i run the script,it should take the date automatically.

Ikon · #6 (**permalink**) 12-09-2008

Code:

TODAY=`date '+%Y%m%d'`
YEARSAGO=`date --date='-3 years' '+%Y%m%d'`
echo "Today: $TODAY  3 Years Ago: $YEARSAGO"

Code:

# sh test.sh
Today: 20081209  3 Years Ago: 20051209

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